Rosie Haine studied children's book illustration at the Cambridge School of Art, and she has also earned an MA in Globalization, Ethnicity, and Culture from Sussex University. Rosie's research for this book brought her to museums and archaeological sites across the UK and Europe, including Chauvet Cave and the British Museum. She worked closely with archaeologist Ulrike Sommer to ensure that this book reflected human development, history, and artifacts from the Paleolithic Age. Rosie's other books include It Isn't Rude to Be Nude and Hooves or Hands? (both Tate Publishing). She lives in England. Visit Rosie's website at rosiehaine.co.uk and follow her on Instagram at @futureisrosie.